<template>
  <footer class="footer" >
      <span class="todo-count" v-show="left"><strong>{{left}}</strong>剩余</span>
      <ul class="filters">
        <li>
          <a :class="{selected:type==='all'}" href="#/" @click.prevent="changeType('all')">全部</a>
        </li>
        <li>
          <a :class="{selected:type==='active'}" href="#/active" @click.prevent="changeType('active')">进行中</a>
        </li>
        <li>
          <a :class="{selected:type==='completed'}" href="#/completed" @click.prevent="changeType('completed')">已完成</a>
        </li>
      </ul>
      <button class="clear-completed" @click="clear" v-show="isDoneAll">清除已完成</button>
    </footer>
</template>

<script>
 export default {
   name: 'TodoFooter',
   props: {
    left:{
      type:Number,
      required:true,
    },
    isDoneAll:{
      type:Boolean,
      required:true
    },
    type:{
      type:String,
      required:true
    }
   },
   components: {

   },
   data () {
     return {

     }
   },
   methods: {
    clear(){
      this.$emit('clear')
    },
    changeType(type){
      this.$emit('changeType',type)
    }

   },
 }
</script>

<style scoped lang='less'>

</style>